Academic literature on the topic 'Dyes properties'

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Journal articles on the topic "Dyes properties"

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Jangwan, J. S., Maneesha Dobhal, and S. C. Sati. "Dyeing of wool and cotton fibres with fruit rind of Juglans regia as natural dyes, and standardization of ancient dyeing procedure." Environment Conservation Journal 8, no. 3 (2007): 35–38. http://dx.doi.org/10.36953/ecj.2007.080310.

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Vegetable dyes and their uses are known in an cient time more than 2000 years ago. It was found that the discovery of synthetic dyes reduce the use of natural dyes and consequently the export of same was affected in large extent. However due to non toxic nature, eco-friendly behaviour and properties to impart variety of colours once again natural dyes are getting more attention of chemists and dyers. The present paper deals with optimization of dyeing and mordanting of wool and cotton samples with fruit rind of Juglans regia and standardization of ancient dyeing procedure and also the fastness
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Sabyrkhanova, S. Sh, B. Abzalbekuly, and G. K. Yeldiyar. "COMPARATIVE ANALYSIS OF THE STRUCTURES OF TEXTILE MATERIALS USING VARIOUS TYPES OF MODIFIED NATURAL DYES." Mechanics and Technologies, no. 2 (June 30, 2024): 299–307. https://doi.org/10.55956/ombs3603.

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The study presents the results of research work on IR spectroscopy of dyed fabrics with natural dyes and with the addition of mordants to improve the physicochemical properties of shoe material, and also describes a comparative analysis of the functional groups of the extract of natural dyes from onion peel, hypericum and tansy for dyeing textile materials that have the ability to resist microorganisms. At the present stage, it is relevant to obtain and study natural dyes for textile materials. This article highlights various natural sources and the possibilities of using these substances in t
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Lykidou, Smaro, Evangelos Karanikas, Nikolaos Nikolaidis, and Eforia Tsatsaroni. "Synthesis, characterization and ultrafiltration of reactive dyes. Application by exhaustion and/or ink-jet printing—II." Textile Research Journal 87, no. 6 (2016): 694–707. http://dx.doi.org/10.1177/0040517516636004.

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Three novel vinyl sulfone reactive dyes of various metallic salts (Na, K, Li) have been synthesized by coupling 1-amino-phenyl-4-beta hydroxyethyl sulfone sulfate ester with 1-amino-8-hydroxynaphthalene-3,6-disulfonic acid (H-acid). The reactive dyes were then purified using ultrafiltration (UF). The ultrafiltrated dyes of the various metallic salts were characterized by their spectrophotometrical data using Ultra Violet-visible (UV-vis), Fourier transform infra-red and optical emission spectroscopy, X-ray diffraction, and elemental analysis. The purity of the dyes was checked by Thin Layer Ch
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Wei, Bo, Qiu Yuan Chen, Ren Cheng Tang, and Guo Qiang Chen. "Dyeing Properties of Lac Dyes for Wool, Silk and Nylon." Advanced Materials Research 233-235 (May 2011): 817–20. http://dx.doi.org/10.4028/www.scientific.net/amr.233-235.817.

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The dyeing properties of lac dyes for wool, silk and nylon fibers were investigated, and compared in terms of dependence of dye uptake on pH, dyeing rates, and building-up performance as well as color hue and color fastness of dyed fabrics. For all the three fibers, the uptake of lac dyes was greatly influenced by pH, indicating that the electrostatic interaction between lac dyes and fibers predominantly contributes to lac adsorption. The maximum adsorption wavelength of dyed fabrics shifted to a higher value with increasing application pH, indicating the existence of bathochromic effect. Lac
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Zhou, Lan, Jian Zhong Shao, and Li Qin Chai. "Study on the UV-Protective Performance of Cotton Fabrics Dyed with Natural Dyes." Advanced Materials Research 332-334 (September 2011): 1408–13. http://dx.doi.org/10.4028/www.scientific.net/amr.332-334.1408.

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In this study, the ultraviolet protective properties of the cotton fabrics dyed with natural dyes were investigated. It was observed that cotton fabrics dyed with natural dyes could absorb about 80% of the ultraviolet rays. It was demonstrated that the UV-protective effects were strongly dependent on the absorption characteristics of natural dyes for UV radiation.
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Qin, Chuan Xiang, Ren Cheng Tang, and Guo Qiang Chen. "Study on the Dyeing Properties of Hemicyanine Dyes in Acrylic Fabrics." Advanced Materials Research 175-176 (January 2011): 587–92. http://dx.doi.org/10.4028/www.scientific.net/amr.175-176.587.

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In this paper, two hemicyanine dyes, DEASPI and DHEASPI-C1, were synthesized and used in acrylic fabrics as fluorescent dyes. The influence of the hydroxyl groups of dye molecules on the dyeing properties was analyzed, and the results showed that the exhaustion value and partition coefficient value decreased a lot when there were two hydroxyl groups attached to the end of dye molecule. The reflectance of the dyed acrylic fabrics with these two fluorescent dyes is higher than 100% in 600 - 700 nm. Moreover, the chromaticity of dyed acrylic fabric was calculated according to the EN-471 standard
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Liu, Kai Qiang, Yan Lian Rui, and Guo Qiang Chen. "Dyeing of Silk/PLA Mixture with Reactive Dyes." Advanced Materials Research 239-242 (May 2011): 1739–42. http://dx.doi.org/10.4028/www.scientific.net/amr.239-242.1739.

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Silk/PLA mixture is a new textile material, and it combines the outstanding characteristics of silk and PLA fibers. During the wet process, this mixture is subjected to some problems owing to the poor resistance of PLA fiber to alkali. The silk component in this mixture can be dyed with acid dyes under acidic condition, and with reactive dyes under alkaline condition. In the present work, silk/PLA mixture was dyed with Everzol ED reactive dyes in the case of the use of sodium carbonate and sodium bicarbonate as alkalis for the fixation of dyes. The alkali dosage and dyeing temperature on the u
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Ali, Afnan Nasser. "A comprehensive study of natural and synthetic dyes: their properties, methods of preparation, and uses." SHIFAA 2024 (January 3, 2024): 1–17. http://dx.doi.org/10.70470/shifaa/2024/001.

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The use of natural dyes in the dying process was one of the oldest procedures used by the ancients. Obtaining dyes from natural sources means extracting them from plants and animals. Colors are derived from natural sources. Dyes can be divided into two categories: natural dyes and synthetic dyes. Synthetic dyes include saffron dyes and azo dyes, the latter being one of several types of organic compounds that are produced in large quantities through industrial processes. Dyeing is a process that involves the use of dyes in the dyeing process of textiles and food products. Fabrics are colored wi
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Maradiya, Harir. "Monoazo disperse dyes based on 2-amino-1,3,4-thiadiazole derivatives." Journal of the Serbian Chemical Society 67, no. 11 (2002): 709–18. http://dx.doi.org/10.2298/jsc0211709m.

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A series of monoazo disperse dyes based on 2-amino-5-mercapto-1,3,4-thiadiazole was prepared by coupling with various N-arylmaleimides. The dyeing performance of these dyes was assessed on nylon fabric. The dyes were found to give yellow to brown colour shades on dyeing with good depth and levelness on nylon fabric. The dyebath exhaustion fixation and fastness properties of the dyes were also determined. The dyed fabric showed moderate to good light fastness and very good to excellent fastness to washing, rubbing, perspiration and sublimation. The IR and visible range spectral properties of th
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Teng, Xiao Xu, Jian Wei Shi, and Shu Fen Zhang. "Research in the Cold Pad-Batch Dyeing Process for the Cationic Cotton." Advanced Materials Research 864-867 (December 2013): 2145–51. http://dx.doi.org/10.4028/www.scientific.net/amr.864-867.2145.

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Cotton fabrics pretreated with cationic polyacrylamide with quaternary ammonium group were dyed with three reactive dyes in the absence of salt by cold pad-batch dyeing method. The influences of various conditions in the dyeing process, including urea dosage, selection of alkali agent and its dosage, batching time and batching temperature on colour yield, were analyzed. Fastness properties of the dyed cotton and the dye penetration were investigated between the pretreated and untreated cotton. The results showed that the dyesK/Svalues of the pretreated cotton were improved compared with those
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Dissertations / Theses on the topic "Dyes properties"

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Sjöqvist, Jonas. "Luminescence properties of flexible conjugated dyes." Licentiate thesis, Linköpings universitet, Beräkningsfysik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-75191.

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In this licentiate thesis the luminescence properties of two flexible conjugated dyes have been studied. The first, Pt1, is a platinum(II) acetylide chromophore used in optical power limiting materials. The second is a set of optical probes known as luminescent conjugated oligothiophenes (LCOs), which are used to detect and characterize the protein structures associated with amyloid diseases such as Alzheimer’s disease. MM3 and CHARMM force field parameters have been derived for the Pt1 chromophore and LCOs, respectively, based on potential energy surface references calculated at the density f
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Gerowska, Marta. "Synthesis and properties of new fluorescent dyes and dye-labelled oligonucleotides." Thesis, University of Southampton, 2012. https://eprints.soton.ac.uk/348171/.

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Fluorescence is widely used in DNA sequencing and genetic analysis. Novel fluorescence techniques for studying nucleic acids and other biologically important molecules are constantly being developed. In order to provide efficient probes with desired fluorescent properties, new fluorophores and nucleic acids labelling chemistries are required. The synthesis of various cyanine dyes derivatives is described in this thesis. Dyes were designed for NHS-ester and click chemistry labelling of oligonucleotides. Additionally the synthesis of disperse blue quencher and a 2′-mesyl-modified thymidine monom
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Bisht, R. "NIR active squaraine dyes for dye-sensitized solar cells: modulating aggregation, orientation and electronic properties of the dyes." Thesis(Ph.D.), CSIR-National Chemical Laboratory, 2018. http://dspace.ncl.res.in:8080/xmlui/handle/20.500.12252/4349.

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Squaraine dyes are a subclass of polymethine dyes, which owing to its low band gap and strong absorption (ε >105 M−1 cm−1) in the far-red and NIR region have found application in dye-sensitized solar cells. While the squaraine dyes have excellent absorption in the far-red region, the exciton quenching by aggregation limits its overall performance in dye-sensitized solar cells. The aggregates form when the dipoles of the molecules interact with each other due to pi-pi interaction. When a molecule absorbs light and reaches excited state, the photoexcited electron in the LUMO state hops between t
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Swatton, Stewart Nathan Ridgley. "Dynamic excited state properties of organic dyes." Thesis, University of Exeter, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.244422.

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George, Christopher David. "Nonlinear optical and electrical properties of hemicyanine dyes." Thesis, Cranfield University, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.284915.

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Boyle, Kevin J. "Synthesis and properties of new heterocyclic metallised dyes." Thesis, University of Edinburgh, 2005. http://hdl.handle.net/1842/12580.

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Various 3-substituted isoquinolin-4-ols have been successfully synthesised by two different methodologies. Treatment of isoquinoline <i>N</i>-oxide with <i>p</i>-toluenesulfonyl chloride, provided 4-(<i>p</i>-toluenesulfonyloxy) isoquinoline in 30% yield and high purity <i>via </i>rearrangement of an intermediate <i>N</i>-(<i>p</i>-toluenesulfonyloxy) compound. Isoquinolin-4-ol was then obtained, after acid hydrolysis of 4-(<i>p</i>-toluenesulfonyloxy) isoquinoline. 3-Methylisoquinolin-4-ol has been synthesised in a similar manner and yield, from 3-methylisoquinoline <i>N</i>-oxide <i>via </i>
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Garrison, Seth Thomas. "Catalytic Properties and Mechanical Behavior of Metallic Glass Powders." Thesis, University of North Texas, 2017. https://digital.library.unt.edu/ark:/67531/metadc984273/.

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Lack of crystalline order and microstructural features such as grain/grain-boundary in metallic glasses results in a suite of remarkable attributes including very high strength, close to theoretical elasticity, high corrosion and wear resistance, and soft magnetic properties. By altering the morphology and tuning of composition, MGs may be transformed into high-performance catalytic materials. In this study, the catalytic properties of metallic glass powders were demonstrated in dissociating toxic organic chemicals such as AZO dye. BMG powders showed superior performance compared to state of t
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Zalim, Nalan. "Synthesis And Ion Sensing Properties Of Novel Boradiazaindacene Dyes." Master's thesis, METU, 2003. http://etd.lib.metu.edu.tr/upload/4/1046051/index.pdf.

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The derivatives of boradiazaindacene (BODIPY) are highly fluorescent dyes which have quantum yields near 1.0. These dyes that have exceptional spectral and photophysical stability as compared to other fluorescent groups are used for several different applications. The fluorescent sensor molecules for the detection of cations with PET (photoinduced-electron transfer) mechanism in general have been obtained by the differentiation of the BODIPY core. The extension of conjugation over the pyrrole ring shifts the absorption and emission at longer wavelength. Moreover, it is seen that red emission o
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Burnham, Paul Michael. "Synthesis and properties of some novel phthalocyanine functional dyes." Thesis, University of East Anglia, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.268574.

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Choudhury, Hasneen. "Photoyellowing of lignin containing materials." Thesis, University of Kent, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.282456.

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Books on the topic "Dyes properties"

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Klaus, Hunger, ed. Industrial dyes: Chemistry, properties, applications. Wiley-VCH, 2003.

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Nikolaĭ, Ti͡u︡i͡u︡lkov, ed. Polymethine dyes: Structure and properties. St. Kliment Ohridski University Press, 1991.

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Lucjan, Strękowski, ed. Heterocyclic polymethine dyes: Synthesis, properties and applications. Springer, 2008.

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Todd, Richard Samuel Joseph. The optical properties of triazinylaniline dyes in homogeneous and organized media. TheAuthor], 1987.

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Zollinger, Heinrich. Color chemistry: Syntheses, properties, and applications of organic dyes and pigments. 2nd ed. VCH, 1991.

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Zollinger, Heinrich. Color chemistry: Syntheses, properties and applications of organic dyes and pigments. VCH, 1987.

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Zollinger, Heinrich. Color chemistry: Syntheses, properties, and applications of organic dyes and pigments. VCH, 1987.

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Owen, Hywel Leroy. Physical properties of organosiloxane ferroelectric liquid crystals and fluorescent dyes for electro-optic device applications. University of Manchester, 1995.

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Corsellis, Emily Ann. Physical characterisation of the electro-optic properties of thermotropic liquid crystals composed of siloxane and dye moieties. University of Manchester, 1995.

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Fournier, Daniel-Steve. Broadband characterization of the Kerr third-order nonlinear optical properties of a polymer-based organic azobenzene dye: DR1-PMMA. National Library of Canada, 2002.

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Book chapters on the topic "Dyes properties"

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Setsune, Jun-ichiro. "Porphyrins: Syntheses and Properties." In Progress in the Science of Functional Dyes. Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-33-4392-4_3.

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Gordon, Paul Francis, and Peter Gregory. "Application and Fastness Properties of Dyes." In Organic Chemistry in Colour. Springer Berlin Heidelberg, 1987. http://dx.doi.org/10.1007/978-3-642-82959-8_6.

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Poly, Julien. "Polymers with Photoinduced Self-Healing Properties." In Dyes and Chromophores in Polymer Science. John Wiley & Sons, Inc., 2015. http://dx.doi.org/10.1002/9781119006671.ch12.

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Gürses, Ahmet, Metin Açıkyıldız, Kübra Güneş, and M. Sadi Gürses. "Dyes and Pigments: Their Structure and Properties." In SpringerBriefs in Molecular Science. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-33892-7_2.

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Fermi, Andrea, and Davide Bonifazi. "Tailoring the photoredox properties of organic dyes." In Photochemistry. Royal Society of Chemistry, 2019. http://dx.doi.org/10.1039/9781788016520-00293.

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Zafar, Sana, and Mohd Shahid Khan. "Nonlinear Optical Properties of Organic Dyes and Organic Dye-Polymer Nanocomposites." In Emerging Trends in Nanotechnology. Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-15-9904-0_13.

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Sturmer, David M. "Syntheses and Properties of Cyanine and Related Dyes." In Chemistry of Heterocyclic Compounds: A Series Of Monographs. John Wiley & Sons, Inc., 2008. http://dx.doi.org/10.1002/9780470187005.ch8.

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Pfeiffer, M., W. Werncke, A. Lau, and W. Freyer. "Correlation of Electronic Properties and Raman Spectra Within a Series of Polymethine Dyes." In Electronic Properties of Polymers. Springer Berlin Heidelberg, 1992. http://dx.doi.org/10.1007/978-3-642-84705-9_28.

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Przhonska, Olga V. "Optical Properties and Applications of Near Infrared Dyes in Polymeric Media." In Near-Infrared Dyes for High Technology Applications. Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-011-5102-3_14.

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Narayanan, Narasimhachari, Garrick Little, Ramesh Raghavachari, et al. "New NIR Dyes: Synthesis, Spectral Properties and Applications in DNA Analyses." In Near-Infrared Dyes for High Technology Applications. Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-011-5102-3_7.

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Conference papers on the topic "Dyes properties"

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Mazurenko, Julia, Larysa Kaykan, Mariia Moklyak, Khrystyna Bandura, Lukasz Gondek, and Antoni Żywczak. "Magnesium Substituted Copper Ferrite as an Effective Catalyst for the Organic Dyes Decomposition." In 2024 IEEE 14th International Conference Nanomaterials: Applications & Properties (NAP). IEEE, 2024. http://dx.doi.org/10.1109/nap62956.2024.10739689.

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Gäbler, Tobias B., Aleksa Krstić, Nitish Jain, et al. "Optimization of Entangled Two-Photon Absorption Experiments based on Semi-Empirical Approach with Accessible Chemical Properties of Fluorescence Dyes." In Quantum 2.0. Optica Publishing Group, 2024. http://dx.doi.org/10.1364/quantum.2024.qtu3a.46.

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Studies on entangled two-photon absorption often do not show proof of fluorescence emission. Also, theoretical predictions for specific dyes are missing. We introduce a semi-empirical approach based on accessible chemical properties to optimize experimental investigations.
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Tadić, Julijana D., Jelena M. Lađarević, Maja D. Marković, Aleksandra M. Ivanovska, Mirjana M. Kostić, and Dušan Ž. Mijin. "A NOVEL AZO-AZOMETHINE DYE: SYNTHESIS, DYEING AND ANTIOXIDANT PROPERTIES." In 1st INTERNATIONAL Conference on Chemo and BioInformatics. Institute for Information Technologies, University of Kragujevac, 2021. http://dx.doi.org/10.46793/iccbi21.379t.

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Schiff bases, or azomethine compounds, are commonly employed in the fields of organic synthesis, metal complexes, materials, and engineering. Especially, they have gained importance in medicinal researches, considering their antimicrobial, anticancer, anti- inflammatory, and antioxidant properties. On the other side, azo dyes are the most significant group of synthetic dyes, utilized in textile fiber dyeing. Conjugation of Schiff bases with azo compounds leads to the class of azo-azomethine dyes, which have numerous applications related to their coloration and biological properties. Viscose is
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Grubb, Stephen G., and Davida W. Kalina. "Organic Superlattices for Nonlinear Optics: Alternating Langmuir-Blodgett Multilayers of Azobenzene Dyes." In Nonlinear Optical Properties of Materials. Optica Publishing Group, 1988. http://dx.doi.org/10.1364/nlopm.1988.mf2.

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We report near-ideal quadratic enhancement of second harmonic generation (SHG) from alternating, non-centrosymmetric multilayers of two azobenzene dyes deposited on glass substrates by the Langmuir-Blodgett (LB) technique. In the first case we deposited layers of the azo dye 4-nitro-4'-N-(stearoyl) aminoazobenzene (NSAAB) diluted 2:1 with stearic acid alternating with layers of pure stearic acid. Dilution of the azo dye in stearic acid leads to an increase in the effective molecular hyperpolarizability β, due presumably to prevention of dye aggregation and/or tail ordering effects. By comparis
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Saad, Sahriyanti, Muhammad Asril, Andi Detti Yunianti, and S. Suhasman. "Properties evaluation of dyed laminated bamboo by natural dyes." In THE 4TH INTERNATIONAL CONFERENCE ON MATHEMATICS: EDUCATION, THEORY & APPLICATION (ICMETA) 2022. AIP Publishing, 2025. https://doi.org/10.1063/5.0240680.

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Franke, H., G. Knabke, and W. F. X. Frank. "Electrooptical Properties of Nonlinear Dyes in PMMA and Poly-(alpha-methyl-styrene)." In Nonlinear Optical Properties of Materials. Optica Publishing Group, 1988. http://dx.doi.org/10.1364/nlopm.1988.mf8.

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In optical telecommunications there is a great demand for materials whose optical propagation properties can be influenced by electric fields. For slow switching rates liquid crystals can be used which have extremly high electrooptical coefficients due to mobility of the whole molecule. For higher switching rates electronic properties can be used like POCKELS effect and KERR effect. In order to implement these effects in a polymeric material, this can be doped by a suitable dye in relative small concentrations. The orientation behaviour of pure poly-(alpha-methyl-styrene) (PaMS) has been repor
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Sánchez-Martínez, Ainhoa, Mira Martínez Alejandro, Mira Penalva Inés, Belda Anaya Raquel, Ignacio Montava, and Jaime Gisbert-Payá. "Influence of Laccase Enzyme on the Biodegradability of Indigo Blue Dyed 100% Cotton Fabrics." In 22th AUTEX World Textile Conference. Trans Tech Publications Ltd, 2024. http://dx.doi.org/10.4028/p-3yythr.

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A bstract: Improving the environmental impact of textile waste is essential for the good functioning of the planet, as it is not viable to prolong the recycling of textile materials indefinitely due to the loss of properties. The presence of dyes in fabrics is a key point to study from the perspective of biodegradability, as the presence of these dyes in effluents is widely studied due to their high polluting impact on water. This project has analysed whether the presence of dyes in fabrics affects their biodegradability process. In addition, it has been studied whether finishing with laccase
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Ivanenko, Iryna, Khrystyna Hutsul, and Yurii Fedenko. "Nanocomposite TiO2-ZnO for Dyes Photocatalytic Degradation." In 2021 IEEE 11th International Conference Nanomaterials: Applications & Properties (NAP). IEEE, 2021. http://dx.doi.org/10.1109/nap51885.2021.9568504.

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Jones II, Guilford, Oksana Klueva, Satish Kumar, and Dennis P. Pacheco. "Photochemical and lasing properties of pyrromethene dyes." In Photonics West 2001 - LASE, edited by Richard Scheps. SPIE, 2001. http://dx.doi.org/10.1117/12.424614.

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Bonner, Jr., Carl E., LaQuieta Huey, James H. Haliburton, and Sam-Shajing Sun. "Optical limiting properties of derivatized carbothiacyanine dyes." In International Symposium on Optical Science and Technology. SPIE, 2000. http://dx.doi.org/10.1117/12.408514.

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Reports on the topic "Dyes properties"

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Bird, G., P. Panayotatos, R. Sauers, and J. Potenza. Photovoltaic p-n junction cells employing new organic dyes having high stability and designed molecular properties: Final subcontract report. Office of Scientific and Technical Information (OSTI), 1986. http://dx.doi.org/10.2172/7228960.

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Tuck, D. M. Interfacial Properties of a Hydrophobic Dye in the Tetrachloroethylene-Water-Glass Systems. Office of Scientific and Technical Information (OSTI), 1999. http://dx.doi.org/10.2172/5298.

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Russo, David, and William A. Jury. Characterization of Preferential Flow in Spatially Variable Unsaturated Field Soils. United States Department of Agriculture, 2001. http://dx.doi.org/10.32747/2001.7580681.bard.

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Preferential flow appears to be the rule rather than the exception in field soils and should be considered in the quantitative description of solute transport in the unsaturated zone of heterogeneous formations on the field scale. This study focused on both experimental monitoring and computer simulations to identify important features of preferential flow in the natural environment. The specific objectives of this research were: (1) To conduct dye tracing and multiple tracer experiments on undisturbed field plots to reveal information about the flow velocity, spatial prevalence, and time evol
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